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SN74AS74AN Datasheet(PDF) 5 Page - Texas Instruments |
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SN74AS74AN Datasheet(HTML) 5 Page - Texas Instruments |
5 / 19 page SN54ALS74A, SN54AS74A, SN74ALS74A, SN74AS74A DUAL POSITIVEEDGETRIGGERED DTYPE FLIPFLOPS WITH CLEAR AND PRESET SDAS143C − APRIL 1982 − REVISED AUGUST 1995 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN54AS74A SN74AS74A UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = −18 mA −1.2 −1.2 V VOH VCC = 4.5 V to 5.5 V, IOH = − 2 mA VCC −2 VCC −2 V VOL VCC = 4.5 V, IOL = 20 mA 0.25 0.5 0.25 0.5 V II VCC = 5.5 V, VI = 7 V 0.1 0.1 mA IIH CLK or D VCC = 5.5 V, VI = 2.7 V 20 20 A IIH PRE or CLR VCC = 5.5 V, VI = 2.7 V 40 40 µA IIL CLK or D VCC = 5.5 V, VI = 0.4 V − 0.5 − 0.5 mA IIL PRE or CLR VCC = 5.5 V, VI = 0.4 V −1.8 −1.8 mA IO‡ VCC = 5.5 V, VO = 2.25 V −30 −112 −30 −112 mA ICC VCC = 5.5 V, See Note 1 10.5 16 10.5 16 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. NOTE 1: ICC is measured with D, CLK, and PRE grounded, then with D, CLK, and CLR grounded. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX§ UNIT PARAMETER (INPUT) (OUTPUT) SN54AS74A SN74AS74A UNIT MIN MAX MIN MAX fmax* 90 105 MHz tPLH PRE or CLR Q or Q 2 9 2 7.5 ns tPHL PRE or CLR Q or Q 2.5 11.5 2.5 10.5 ns tPLH CLK Q or Q 2.5 10 3 8 ns tPHL CLK Q or Q 3.5 10.5 3 9 ns * On products compliant to MIL-STD-833, Class B, this parameter is based on characterization data but is not production tested. § For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. |
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